Air duct assembly and air conditioning device

Abstract

The present disclosure relates to an air duct assembly and an air conditioning device, the air duct assembly comprising a housing, a first air fan and a second air fan, the housing being provided with a first air outlet opening downward and a second air outlet opening forward, the first air fan and the second air fan being connected by at least a part of a volute to form a communication air duct, a first air inlet of the first air fan being in communication with the first air outlet, a second air inlet of the second air fan being in communication with the second air outlet, the air duct assembly comprising a first working mode or a second working mode, in the first working mode, the first air fan works, and air flow is sent out from the second air outlet through the first air outlet and the communication air duct; or, in the second working mode, the second air fan works, and air flow is sent out from the first air outlet through the second air outlet and the communication air duct. Through the above technical solution, the air duct assembly provided by the present disclosure can meet different air outlet requirements of the air conditioning device.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning technology, and more specifically, to an air duct assembly and an air conditioning device. Background Technology

[0002] In related technologies, air conditioning equipment has a single air duct and a fixed air outlet direction, which causes cold air to descend during cooling and hot air to rise during heating, affecting the uniformity of airflow and making it difficult to meet users' air blowing needs. Utility Model Content

[0003] The purpose of this disclosure is to provide a duct assembly and an air conditioning device that can meet the different air outlet requirements of the air conditioning device.

[0004] According to a first aspect of the present disclosure, a duct assembly is provided, the duct assembly comprising: The housing, wherein the housing is provided with a first air vent opening downward and a second air vent opening forward; and A first fan and a second fan are connected by at least a portion of their casings to form a ventilation duct. The first air inlet of the first fan is connected to the first air outlet, and the second air inlet of the second fan is connected to the second air outlet. The air duct assembly includes a first operating mode and / or a second operating mode. In the first operating mode, the first fan operates, and airflow is delivered from the second air outlet through the first air outlet and the connecting ventilation duct; or... In the second operating mode, the second fan operates, and the airflow is sent out from the first air outlet through the second air outlet and the connecting ventilation duct.

[0005] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: The air duct assembly provided by this disclosure is provided with a first fan and a second fan connected at least partially by a volute to form a connecting air duct. This connecting air duct is connected to a first air outlet and a second air outlet. By controlling the operation of the first fan and the second fan respectively, the airflow direction in the connecting air duct can be controlled, and the air is delivered towards different first air outlets and second air outlets, realizing both forward and reversible air delivery of the air duct assembly. When this air duct assembly is applied in the field of air conditioning equipment, it can flexibly select airflow to enter from the bottom and exit from the side, or to enter from the side and exit from the bottom, according to actual needs, thereby conforming to the airflow characteristics under different modes, meeting the different air outlet requirements of air conditioning equipment, and improving the user's comfort experience in different usage scenarios.

[0006] In some possible implementations, the first fan and / or the second fan are constructed as centrifugal fans. Centrifugal fans are characterized by high air pressure, stable airflow delivery, and adaptability to different air delivery distances. Compared with other types of fans such as cross-flow fans, they can drive airflow within the ventilation duct more efficiently.

[0007] In some possible implementations, the first fan includes a first volute, and the second fan includes a second volute. A first air outlet of the first volute is connected to a second air outlet of the second volute, thereby connecting the internal spaces of the first and second volutes to form the connecting ventilation duct. This ensures the sealing of the connecting ventilation duct, reduces air leakage at the volute connection point, and improves overall air delivery efficiency. Furthermore, the volutes themselves guide airflow; the connected first and second volutes provide a stable flow path for the airflow, preventing eddies and turbulence within the connecting ventilation duct.

[0008] In some possible implementations, the first air vent is disposed on the bottom wall of the housing, the first volute is connected to the bottom wall of the housing, and the first air inlet communicates with the first air vent; and / or, the housing includes a partition plate, a second air vent is provided on the front side wall of the housing, the partition plate is provided with a connecting opening, the second volute is connected to the partition plate, and the second air inlet is connected to the connecting opening to communicate with the second air vent. This effectively avoids the problem of uneven airflow, such as cold air sinking in cooling systems and hot air floating in heating systems, meeting the different air outlet requirements of air conditioning equipment and improving the user's comfort experience in different usage scenarios.

[0009] In some possible implementations, the first fan includes a first impeller with a first axis of rotation perpendicular to the bottom wall of the housing, and the second fan includes a second impeller with a second axis of rotation perpendicular to the front side wall of the housing. The first and second axes of rotation are perpendicular to each other. This allows for efficient airflow, ensuring smooth air intake / exhaust at the front, while preventing interference between the first and second impellers during operation, thus improving the overall performance of the duct assembly.

[0010] In some possible implementations, the first fan includes a first motor, and the first volute is disposed between the first motor and the first air outlet; and / or the second fan includes a second motor, and the second volute is disposed between the second motor and the second air outlet. This avoids airflow bypassing the area of ​​the first motor (or second motor), preventing airflow path lengthening and losses, thereby reducing wind noise and improving air intake / exhaust efficiency.

[0011] In some possible implementations, the partition divides the internal space of the housing into a first chamber and a second chamber. The first fan and the second fan are arranged in the first chamber. The bottom wall of the first chamber is provided with the first air vent, and the front side wall of the second chamber is provided with the second air vent. The first chamber and the second chamber are connected through the communication port. In this way, the partition can prevent the vibration and noise generated during fan operation from being transmitted to the second chamber, while preventing fan components from interfering with other structures and improving the operational stability of the fan.

[0012] In some possible implementations, the duct assembly includes a first mounting bracket, through which the first motor is connected to the wall of the first chamber; and / or the duct assembly includes a second mounting bracket, through which the second motor is connected to the wall of the second chamber. The provision of the first and second mounting brackets provides stable support for both the first and second motors.

[0013] According to a second aspect of the present disclosure, an air conditioning device is also provided, including the above-described air duct assembly.

[0014] In some possible implementations, the air conditioning device is a ducted air conditioner. Ducted air conditioners are characterized by uniform air delivery and gentle airflow, while also being aesthetically pleasing and space-saving.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the air duct assembly provided in an exemplary embodiment of this disclosure; Figure 2 This is a schematic diagram of the structure of a duct assembly provided in an exemplary embodiment of the present disclosure, wherein a first fan and a second fan are shown; Figure 3 This is a structural schematic diagram of the air duct assembly provided in an exemplary embodiment of the present disclosure from another perspective, in which a first fan and a second fan are shown; Figure 4 This is a schematic diagram of the structure of the first motor and the second motor provided in an exemplary embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of the air duct assembly provided in an exemplary embodiment of the present disclosure, wherein the first air outlet of the housing is shown; Figure 6This is a schematic diagram of the structure of a duct assembly provided in an exemplary embodiment of the present disclosure, wherein a first fan and a second fan are shown.

[0017] Explanation of reference numerals in the attached figures 1-Shell; 11-First air outlet; 12-Second air outlet; 13-First chamber; 14-Second chamber; 15-Partition plate; 151-Connecting port; 21-First fan; 211-First volute; 212-First impeller; 213-First rotating shaft; 214-First motor; 215-First mounting bracket; 216-First air inlet; 217-First air outlet; 22-Second fan; 221-Second volute; 222-Second impeller; 223-Second rotating shaft; 224-Second motor; 225-Second mounting bracket; 226-Second air inlet; 227-Second air outlet; 23-Connecting ventilation duct; 3-Heat exchanger; 100-Duct assembly. Detailed Implementation

[0018] The specific embodiments of this disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0019] In this disclosure, unless otherwise stated, the directional terms used, such as "upper" and "lower," generally refer to the relative positions of the corresponding components in the direction of gravity when they are in use; "inner" and "outer" generally refer to the relative positions of the corresponding components with respect to their own contours; and "front" and "rear" generally refer to the relative positions of the corresponding components in the horizontal direction when they are in use. In the air duct assembly provided in this disclosure, the orientation of the second air outlet 12 can be considered as "front," and vice versa. Furthermore, the terms "first," "second," etc., are used to distinguish one element from another and do not have sequential or importance implications. In addition, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements. The above definitions are for explanation and illustration only and should not be construed as limiting the present disclosure.

[0020] This disclosure provides an exemplary embodiment of a duct assembly 100. The duct assembly 100 is optionally applicable to air conditioning equipment, including ducted air conditioners, wall-mounted air conditioners, cabinet air conditioners, fresh air units, and air purification equipment, etc. For ease of description, a ducted air conditioner is used as an example for the following exemplary description.

[0021] According to the exemplary embodiments provided in this disclosure, refer to Figures 1 to 6As shown, a duct assembly 100 is provided, which includes: a housing 1, a first fan 21 and a second fan 22. The housing 1 is provided with a first air inlet 11 with its opening facing downward and a second air inlet 12 with its opening facing forward. At least a portion of the first fan 21 and the second fan 22 are connected by a volute to form a connecting duct 23. The first air inlet 216 of the first fan 21 is connected to the first air inlet 11, and the second air inlet 226 of the second fan 22 is connected to the second air inlet 12. It can be understood that airflow can flow into the volute of the first fan 21 (hereinafter referred to as the first volute 211) through the first air inlet 216 of the first fan 21, and similarly, airflow can flow into the volute of the second fan 22 (hereinafter referred to as the second volute 221) through the second air inlet 226 of the second fan 22. With at least a partial connection of the volutes between the first fan 21 and the second fan 22 to form a connecting ventilation duct 23, the airflow entering the volute of the first fan 21 can enter the volute of the second fan 22 through the connecting ventilation duct 23, and similarly, the airflow entering the volute of the second fan 22 can enter the volute of the first fan 21 through the connecting ventilation duct 23. Thus, a fluid communication channel is formed between the first air outlet 11, the first air inlet 216, the connecting ventilation duct 23, the second air inlet 226, and the second air outlet 12.

[0022] The air duct assembly 100 may include a first working mode and / or a second working mode. That is, the air duct assembly 100 may include a first working mode or a second working mode, or it may include both a first working mode and a second working mode.

[0023] In the first working mode, the first fan 21 is working, and the airflow is sent out from the second fan 12 through the first air outlet 11 and the connecting ventilation duct 23. At this time, the second fan 22 is stopped. The airflow enters the volute of the first fan 21 through the first air outlet 11 and the first air inlet 216 of the first fan 21 and flows into the connecting ventilation duct 23. Then it is sent out from the second air outlet 12 through the second air inlet 226 of the second fan 22, thereby realizing the side air outlet from the bottom air inlet.

[0024] In the second operating mode, the second fan 22 operates, and the airflow is sent out from the first air outlet 11 through the second air outlet 12 and the connecting ventilation duct 23. At this time, the first fan 21 is stopped. The airflow enters the volute of the second fan 22 through the second air outlet 12 and the second air inlet 226 of the second fan 22 and flows into the connecting ventilation duct 23. Then it is sent out from the first air outlet 11 through the first air inlet 216 of the first fan 21, thereby realizing side air intake and downward air outlet.

[0025] The air duct assembly 100 provided in this disclosure controls the first fan 21 and the second fan 22, enabling the air duct assembly 100 to switch between a first operating mode and a second operating mode. This allows for both forward airflow (airflow entering from the bottom and exiting from the side) and reverse airflow (airflow entering from the side and exiting from the bottom). By changing the direction of airflow, it helps to accelerate indoor air circulation, improve indoor air circulation efficiency, and enhance the user experience.

[0026] This improvement in air circulation efficiency has different effects on different devices. Taking a device that can cool or heat as an example, when cooling in summer, the cold airflow presses the hot airflow to the bottom, forming a stratification of cold at the top and hot at the bottom. In related technologies, a single air inlet and outlet path, such as side air inlet and bottom air outlet, prevents the hot airflow at the bottom from being quickly drawn into the device. In this case, the reversible air supply is switched to bottom air inlet and side air outlet, so that the hot airflow at the bottom can be quickly drawn into the device.

[0027] Through the above technical solution, the air duct assembly 100 provided in this disclosure is provided with a first fan 21 and a second fan 22 connected by at least a partial volute, and forms a connecting air duct 23. The connecting air duct 23 is connected to the first air outlet 11 and the second air outlet 12. By controlling the operation of the first fan 21 and the second fan 22 respectively, the airflow direction in the connecting air duct 23 is controlled, and the air is delivered towards different first air outlets 11 and second air outlets 12, realizing forward air delivery and reversible air delivery of the air duct assembly 100. When the air duct assembly 100 is applied in the field of air conditioning equipment, it can flexibly select airflow to enter from the bottom and exit from the side, or to enter from the side and exit from the bottom, according to actual needs, thereby conforming to the airflow characteristics in different modes, meeting the different air delivery needs of air conditioning equipment, and improving the user's comfort experience in different usage scenarios.

[0028] In the duct assembly provided in this disclosure, as an exemplary embodiment, at least one of the first fan 21 and the second fan 22 can be configured as a centrifugal fan. For example, one of the first fan 21 and the second fan 22 can be configured as a centrifugal fan, and the other as a cross-flow fan; or, both the first fan 21 and the second fan 22 can be configured as centrifugal fans. This disclosure does not impose specific limitations in this regard. The centrifugal fan features high air pressure, stable airflow delivery, and adaptability to different air delivery distances. Compared to other types of fans such as cross-flow fans, it can drive airflow more efficiently within the connecting duct 23.

[0029] In the implementation where both the first fan 21 and the second fan 22 are centrifugal fans, the loss of airflow in the connecting ventilation duct 23 can be reduced, and the air supply efficiency can be improved. At the same time, the stable airflow characteristics of the centrifugal fan can ensure uniform airflow in both working modes, further enhancing the reliability of the reversible air supply of the duct assembly 100 and adapting to the needs of air conditioning equipment for different air supply intensities and air supply distances.

[0030] In the air duct assembly provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 2 or Figure 3 As shown, the first fan 21 may include a first volute 211, and the second fan 22 may include a second volute 221. The first air outlet 217 of the first volute 211 can be connected to the second air outlet 227 of the second volute 221, so that the internal space of the first volute 211 and the internal space of the second volute 221 are connected to form a connecting ventilation duct 23. In this way, on the one hand, the airtightness of the connecting ventilation duct 23 is ensured, reducing air leakage at the volute docking point and improving the overall air supply efficiency; on the other hand, the volute itself has the function of guiding airflow, and the docked first volute 211 and second volute 221 can provide a stable flow path for the airflow, avoiding problems such as eddies and turbulence in the airflow within the connecting ventilation duct 23. In addition, this structure does not require the addition of an independent air duct, simplifying the overall structure of the air duct assembly 100 and reducing assembly difficulty and production costs.

[0031] When the air duct assembly 100 is in the first operating mode, refer to Figure 2 , Figure 3 and Figure 4 As shown, when the first fan 21 is working, the airflow, driven by the first fan 21, enters the first volute 211 from the first air inlet 11 through the first air inlet 216. Since the second volute 221 is at least partially connected to the first volute 211 and forms a connecting air duct 23, the airflow continues to flow so as to enter the second volute 221. After passing through the second air inlet 226, the connecting port 151 (described in detail below), and the second air inlet 12 in sequence, the airflow is discharged, thus realizing the positive air supply of the air duct assembly 100.

[0032] When the air duct assembly 100 is in the second working mode, the second fan 22 works. Driven by the second fan 22, the airflow enters the second volute 221 from the second air outlet 12 through the second air inlet 226. Since the first volute 211 and the second volute 221 are at least partially connected and form a connecting air duct 23, the airflow continues to flow so as to enter the first volute 211. After passing through the first air inlet 216 and the first air outlet 11 in sequence, it is discharged, realizing the reverse air supply of the air duct assembly 100.

[0033] In the air duct assembly 100 provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 1 , Figure 2 and Figure 5 As shown, the first air vent 11 can be arranged on the bottom wall of the housing 1, the first volute 211 can be connected to the bottom wall of the housing 1, and the first air inlet 216 communicates with the first air vent 11; and / or, the housing 1 can include a partition 15, the front side wall of the housing 1 can be provided with a second air vent 12, the partition 15 can be provided with a connecting port 151, the second volute 221 can be connected to the partition 15, and the second air inlet 226 is connected to the connecting port 151 to communicate with the second air vent 12. The partition 15 can separate the internal space of the housing 1, dividing the housing 1 into a first chamber 13 and a second chamber 14 that are isolated from each other. The first chamber 13 can be equipped with a first fan 21 and a second fan 22, and the second chamber 14 can be equipped with a heat exchanger 3. This avoids interference with the flow direction of the airflow entering the second chamber 14 through the connecting port 151 by the first fan 21 and the second fan 22, improving the reliability of the air supply from the duct assembly 100.

[0034] Taking the cooling and heating process as an example, by setting the first air outlet 11 on the bottom wall of the housing 1 and the second air outlet 12 on the front side wall of the housing 1, the air duct assembly 100 can adopt a first working mode when cooling, so that cold air is sent out from the second air outlet 12 with the opening facing forward. In this way, cold air can be prevented from falling directly and accumulating on the ground. When heating, the air duct assembly 100 can adopt a second working mode, so that hot air is sent out from the first air outlet 11 with the opening facing downward, preventing hot air from rising and accumulating at the top. This effectively avoids the problem of uneven airflow caused by cold air sinking when cooling and hot air floating when heating, meets the different air outlet requirements of the air conditioning equipment, and improves the user's comfort experience in different usage scenarios.

[0035] In other embodiments, the first air vent 11 and the second air vent 12 can be arranged in any suitable position. For example, one of the first air vent 11 and the second air vent 12 can be located on the bottom wall of the housing 1 and the other on the top wall of the housing 1, or one of the first air vent 11 and the second air vent 12 can be located on the front side wall of the housing 1 and the other on the rear side wall of the housing 1, etc. This disclosure does not impose specific limitations in this regard. In the above embodiments, the positions of the first fan 21 and the second fan 22 can be arbitrarily and appropriately arranged, provided that the first air inlet 216 of the first fan 21 is connected to the first air vent 11 and the second air inlet 226 of the second fan 22 is connected to the second air vent 12. This disclosure also does not impose specific limitations in this regard.

[0036] In the air duct assembly provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 2 and Figure 5As shown, the first fan 21 may include a first impeller 212, and the first rotation shaft 213 of the first impeller 212 may be perpendicular to the bottom wall of the housing 1. The second fan 22 may include a second impeller 222, and the second rotation shaft 223 of the second impeller 222 may be perpendicular to the front side wall of the housing 1. The first rotation shaft 213 and the second rotation shaft 223 may be perpendicular to each other. The first rotation shaft 213 being perpendicular to the bottom wall of the housing 1 allows the first impeller 212 to efficiently drive airflow in a direction perpendicular to the bottom wall (i.e., the direction in which the first air outlet 11 faces downwards) when rotating, reducing the impact angle between the airflow and the impeller and improving the efficiency of the lower air intake / exhaust. Similarly, the second rotation shaft 223 being perpendicular to the front side wall of the housing 1 allows the second impeller 222 to efficiently drive airflow in a direction perpendicular to the front side wall (i.e., the direction in which the second air outlet 12 faces forward), ensuring smooth air intake / exhaust at the front. In addition, the perpendicular arrangement of the first rotating shaft 213 and the second rotating shaft 223 can be adapted to the design of the first air outlet 11 facing downward and the second air outlet 12 facing forward. The positions of the two fans are reasonably planned within the limited internal space of the housing 1, avoiding mutual interference when the first fan 21 and the second fan 22 are operating, and improving the overall performance of the air duct assembly 100.

[0037] In the air duct assembly provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 2 and Figure 3 As shown, the first fan 21 may include a first motor 214, and a first volute 211 may be arranged between the first motor 214 and the first air outlet 11; and / or the second fan 22 may include a second motor 224, and a second volute 221 may be arranged between the second motor 224 and the second air outlet 12. That is, the first air inlet 216 of the first volute 211 is connected to the first air outlet 11, and the first motor 214 is located on the side of the first volute 211 away from the first air outlet 11 to drive the first impeller 212 to rotate. Correspondingly, the second air inlet 226 of the second volute 221 is connected to the second air outlet 12 through a connecting port 151, and the second motor 224 is located on the side of the second volute 221 away from the second air inlet 226 to drive the second impeller 222 to rotate. In this way, when the air duct assembly 100 provided in this disclosure is working, the airflow can directly flow into the first volute 211 (or the second volute 221) after entering from the first air outlet 11 (or the second air outlet 12), so as to avoid the airflow bypassing the area of ​​the first motor 214 (or the second motor 224), which would lead to the extension and loss of the airflow path, thereby reducing wind noise and improving the efficiency of air intake / exhaust.

[0038] In the air duct assembly provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 2 and Figure 3As shown, the partition 15 divides the internal space of the housing 1 into a first chamber 13 and a second chamber 14. A first fan 21 and a second fan 22 can be arranged in the first chamber 13. A first air vent 11 can be provided on the bottom wall of the first chamber 13, and a second air vent 12 can be provided on the front side wall of the second chamber 14. The first chamber 13 and the second chamber 14 can be connected through a connecting port 151. By centrally arranging the first fan 21 and the second fan 22 in the first chamber 13, and separating the first chamber 13 and the second chamber 14 by the partition 15, the vibration and noise generated during fan operation can be prevented from being transmitted to the second chamber 14, while also preventing interference between fan components and other structures, thus improving the stability of fan operation.

[0039] In the air duct assembly provided in this disclosure, as an exemplary embodiment, reference is made to... Figure 3 and Figure 4 As shown, the duct assembly 100 may include a first mounting bracket 215, through which the first motor 214 can be connected to the cavity wall of the first chamber 13; and / or the duct assembly 100 may include a second mounting bracket 225, through which the second motor 224 can be connected to the cavity wall of the second chamber 14. The arrangement of the first mounting bracket 215 and the second mounting bracket 225 provides stable support for the first motor 214 and the second motor 224, improving the stability of the installation of the first fan 21 and the second fan 22. Furthermore, by making the first mounting bracket 215 and the second mounting bracket 225 detachably connected to the first motor 214 and the second motor 224, subsequent maintenance and disassembly are facilitated, improving the maintenance convenience of the duct assembly 100.

[0040] Based on the above embodiments, as an exemplary embodiment, one end of the first mounting bracket 215 is connected to the first motor 214, and the other end can be fixed to the partition plate 15. One end of the second mounting bracket 225 is connected to the second motor 224, and the other end can be fixed to the bottom wall of the housing 1. In other embodiments, the end of the first mounting bracket 215 away from the first motor 214 and the end of the second mounting bracket 225 away from the second motor 224 can also be fixed at any suitable position on the housing 1, such as the rear side wall, top wall, or side wall adjacent to the partition plate 15 of the housing 1. This disclosure does not impose specific limitations in this regard.

[0041] According to a second aspect of the present disclosure, an air conditioning device is provided, including the aforementioned duct assembly 100. The duct assembly 100 has all the beneficial effects described above. The air conditioning device includes ducted air conditioners, wall-mounted air conditioners, cabinet air conditioners, fresh air systems, and air purification devices, etc.

[0042] When using the air conditioning equipment provided in this disclosure, refer to Figures 1 to 5 As shown, when the air duct assembly 100 is in the first operating mode, the first motor 214 drives the first impeller 212 to rotate, while the second motor 224 stops operating. Driven by the first impeller 212, the airflow enters the first volute 211 from the first air outlet 11 through the first air inlet 216, continues flowing into the second volute 221, and then exits sequentially through the second air inlet 226, the connecting port 151, and the second air outlet 12, thus achieving forward airflow from the air conditioning device. When the air duct assembly 100 is in the second operating mode, the second motor 224 operates, while the first motor 214 stops operating. Driven by the second impeller 222, the airflow enters the second volute 221 from the second air outlet 12 through the second air inlet 226, continues flowing into the first volute 211, and then exits sequentially through the first air inlet 216 and the first air outlet 11, thus achieving reverse airflow from the air conditioning device. Changing the airflow direction through this reversible airflow process helps accelerate indoor air circulation, improving indoor air circulation efficiency and user experience. Taking the cooling and heating process as an example, during summer cooling, the cold airflow presses the hot airflow to the bottom, forming a stratification of cold at the top and hot at the bottom. In related technologies, a single air inlet and outlet path, such as side air inlet and bottom air outlet, prevents the hot airflow at the bottom from being quickly drawn into the equipment. At this time, the reversible air supply is switched to bottom air inlet and side air outlet, so that the hot airflow at the bottom can be quickly drawn into the equipment.

[0043] In the air conditioning equipment disclosed herein, the air conditioning equipment can be a ducted air conditioner, which has the characteristics of uniform air delivery and gentle airflow, while also being aesthetically pleasing and space-saving.

[0044] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0046] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A duct assembly, characterized in that, The air duct assembly includes: The housing, wherein the housing is provided with a first air vent opening downward and a second air vent opening forward; and A first fan and a second fan are connected by at least a portion of their casings to form a ventilation duct. The first air inlet of the first fan is connected to the first air outlet, and the second air inlet of the second fan is connected to the second air outlet. The air duct assembly includes a first operating mode and / or a second operating mode. In the first operating mode, the first fan operates, and airflow is delivered from the second air outlet through the first air outlet and the connecting ventilation duct; or... In the second operating mode, the second fan operates, and the airflow is sent out from the first air outlet through the second air outlet and the connecting ventilation duct.

2. The air duct assembly according to claim 1, characterized in that, The first fan and / or the second fan are constructed as centrifugal fans.

3. The air duct assembly according to claim 1 or 2, characterized in that, The first fan includes a first volute, and the second fan includes a second volute. The first air outlet of the first volute is connected to the second air outlet of the second volute, so that the internal space of the first volute and the internal space of the second volute are connected to form the connecting ventilation duct.

4. The air duct assembly according to claim 3, characterized in that, The first air vent is disposed on the bottom wall of the housing, the first volute is connected to the bottom wall of the housing, and the first air inlet communicates with the first air vent; and / or, The housing includes a middle partition, a second air vent is provided on the front side wall of the housing, the middle partition is provided with a connecting port, the second volute is connected to the middle partition, and the second air inlet is connected to the connecting port to communicate with the second air vent.

5. The air duct assembly according to claim 4, characterized in that, The first fan includes a first impeller, and the first axis of rotation of the first impeller is perpendicular to the bottom wall of the housing. The second fan includes a second impeller, and the second axis of rotation of the second impeller is perpendicular to the front sidewall of the housing. The first rotation axis and the second rotation axis are perpendicular to each other.

6. The air duct assembly according to claim 4, characterized in that, The first fan includes a first motor, and the first volute is disposed between the first motor and the first air outlet; and / or The second fan includes a second motor, and the second volute is arranged between the second motor and the second air outlet.

7. The air duct assembly according to claim 6, characterized in that, The partition divides the internal space of the housing into a first chamber and a second chamber. The first fan and the second fan are arranged in the first chamber. The bottom wall of the first chamber is provided with the first air vent, and the front side wall of the second chamber is provided with the second air vent. The first chamber and the second chamber are connected through the communication port.

8. The air duct assembly according to claim 7, characterized in that, The air duct assembly includes a first mounting bracket, and the first motor is connected to the cavity wall of the first chamber via the first mounting bracket; and / or The air duct assembly includes a second mounting bracket, and the second motor is connected to the cavity wall of the second chamber through the second mounting bracket.

9. An air conditioning device, characterized in that, Includes the air duct assembly according to any one of claims 1-8.

10. The air conditioning device according to claim 9, characterized in that, The air conditioning equipment is a ducted air conditioner.

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